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CVE-2023-53616

7.8 · HIGH

In the Linux kernel, the following vulnerability has been resolved: jfs: fix invalid free of JFS_IP(ipimap)->i_imap in diUnmount syzbot found an invalid-free in diUnmount: BUG: KASAN: double-fre…

Published Oct 4, 2025CWE-415EPSS 0.15%

Overview

CVE-2023-53616 is a high-severity vulnerability. It was published on October 4, 2025 and has a CVSS 3.1 base score of 7.8 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

Technical description

In the Linux kernel, the following vulnerability has been resolved:

jfs: fix invalid free of JFS_IP(ipimap)->i_imap in diUnmount

syzbot found an invalid-free in diUnmount:

BUG: KASAN: double-free in slab_free mm/slub.c:3661 [inline]

BUG: KASAN: double-free in __kmem_cache_free+0x71/0x110 mm/slub.c:3674

Free of addr ffff88806f410000 by task syz-executor131/3632

CPU: 0 PID: 3632 Comm: syz-executor131 Not tainted 6.1.0-rc7-syzkaller-00012-gca57f02295f1 #0

Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/26/2022

Call Trace:

<TASK>

__dump_stack lib/dump_stack.c:88 [inline]

dump_stack_lvl+0x1b1/0x28e lib/dump_stack.c:106

print_address_description+0x74/0x340 mm/kasan/report.c:284

print_report+0x107/0x1f0 mm/kasan/report.c:395

kasan_report_invalid_free+0xac/0xd0 mm/kasan/report.c:460

____kasan_slab_free+0xfb/0x120

kasan_slab_free include/linux/kasan.h:177 [inline]

slab_free_hook mm/slub.c:1724 [inline]

slab_free_freelist_hook+0x12e/0x

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

Refgit.kernel.org/stable/c/114ea3cb13ab25f7178cb60283adb93d2f96dad7Refgit.kernel.org/stable/c/4de3a603010e0ca334487de24c6aab0777b7f808Refgit.kernel.org/stable/c/5873df0195124be2f357de11bfd473ead4f90ed8Refgit.kernel.org/stable/c/6e2bda2c192d0244b5a78b787ef20aa10cb319b7Refgit.kernel.org/stable/c/756747d4b439e3e1159282ae89f17eefebbe9b25Refgit.kernel.org/stable/c/88484bde6f12126616b38e43b6c00edcd941f615Refgit.kernel.org/stable/c/c3c0f0ddd851b3fa3e9d3450bbcd561f4f850469Refgit.kernel.org/stable/c/ef7311101ca43dd73b45bca7a30ac72d9535ff87

How CyberStrike helps

Frequently asked questions

What is CVE-2023-53616?

CVE-2023-53616 is a high-severity vulnerability. It was published on October 4, 2025 and has a CVSS 3.1 base score of 7.8 (HIGH).

How severe is CVE-2023-53616?

This vulnerability has a CVSS 3.1 base score of 7.8, rated HIGH. It requires local or adjacent network access to exploit. Some level of privileges is required for exploitation.

How do I fix or remediate CVE-2023-53616?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2023-53616?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2023-53616 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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